The Cornet ED-78S is designed for a quick measurement of Radio Frequency “RF” power density or low frequency Magnetic Fields. Primarily the ED-78S is a broadband measuring instrument with a frequency range from 100 MHz to 8 GHz. In addition, it also measures low frequency Magnetic Fields ranging from 50Hz to 10kHz. This meter will give a home or business owner a basic understanding of RF and EMF exposure in their environment and allow for a basic comparison to existing safety guidelines. Note: If exact values of the RF emission or Magnetic Field is required, please see our RF Meter or EMF Meter page or consult with one of our technical experts.